I was wondering what the difference was between adding a "jar mod" and adding a "loader mod" in the instance edit screen.
For some mods, adding the file via "add jar mod" caused a crash, whilst adding it via "loader mod" boots minecraft fine. Is it alright if I just forego the "add jar file" command altogether and use "add loader mod" for all of my mods?
Checking the instance folder, adding via loader mod just adds it as you would if you didn't have MultMC (put mod file inside mod folder), whereas the add jar file command places a renamed mod file inside a jar folder.
Jar mod are mods that need to go into the minecraft.jar. Mojang says nothing really should go in here unless the mod says so, like Optifine or Forge.
Loader mods are mods that run through forge. You'll want to always run your mods through here unless its supposed to be a jar mod, like mentioned before.